|2 fl oz||Irish whiskey|
|1/2 fl oz||Grand Marnier or other cognac orange liqueur|
|1/2 fl oz||Martini Rosso sweet vermouth|
|1 dash||Orange Bitters by Angostura|
Difford's Guide remains free-to-use thanks to the support of the brands in green above.
A Manhattan variation calling for Irish whiskey instead of bourbon or rye, mixed with equal parts sweet vermouth, orange liqueur and a dash of orange bitters - ideally Regan's Orange Bitters.
Adapted from a recipe by Gary & Mardee Regan in 1999 in New York, USA.